People then get text message updates regarding when tables will be ready and, if they have smartphones, can even access a website featuring animated characters that shows where they are in the food line.

NoWait has spread to restaurants across the United States and into Canada and has been used to seat more than 3.3 million people since it launched in April of last year, according to Myer.

Todd Sapet, managing partner of a Texas Roadhouse, uses NoWait in his franchise steak restaurant in Pennsylvania and said the reaction of guests is "Isn't this cool."

"They get a buzz out of the wizardry of it," Sapet said. "Then they start to realize the different places they go that rob them of their time by making them stand in lines."

Along with freeing would-be diners to wander away from restaurants, perhaps checking out neighboring shops or exploring neighborhoods, the NoWait service allows tables to be turned more efficiently, according to Sapet.

"Time spent arguing with a customer about how long they have been waiting is lost time when we could be selling them food and drinks and getting the table cleared and reset," Sapet said.

"We try not to rob people of their time and, quite frankly, we try to get their money in our pocket as soon as possible."

Opting for the Internet Age tactic also eliminates the annoyance of loudspeakers blaring out the names of people who are waiting, complete with the occasional awkwardness of mispronunciation.

Some US restaurants give waiting patrons paging devices that buzz or blink when tables are ready but people sometimes take their time responding or wander out of pager range.

"We are going to put those buzzers to death," Myer vowed. "They are going to be on a shelf with your Sony Discman and your beepers from the 80s; they will be replaced with a smartphone."

NoWait provides restaurants deals on Apple gadgets, and Sapet estimated the upfront investment to be approximately $1000.

The Pittsburgh, Pennsylvania-based startup uses its servers to fire off text messages to people waiting and host the queue update website. Prices for the subscription service range from free to $200 monthly, according to Myer.

The company was built with seed funding from Carnegie Mellon University, where the two founders earned advanced degrees.

"We are revolutionising the way people wait and get seated at casual dining, no-reservation restaurants," Myer said.

What's your take on the restaurant queue? Do you think this app will work in South Africa?